In this type of question a series of alphabetical Letters or numbers are given and each series follow a certain pattern throughout the series. We will have to identify the pattern and answer the given questions accordingly.

There are so many types of series questions, In which we have to complete the given series or fill the missing term.

TYPE-I Completion of Series

Complete the following series.

Ex-1. 2481632?

a)60 b) 64c) 65 d) none of these

Ex-2. 1912 7 4?

a)1 b) 2c) 3 d) none of these

Ex-3. 123 3 55 77911 ?

a)9 b) 10 c) 11 d) 13 e) none of these

Ex-40 1 2 2 2 4 3 3 3 6 5 5 5 5 8 7 7 7 7 7 7 10 9 9 9 9 9 9 ?

a)11 b) 12c) 9 d) 8e) none of these

Previous Years Questions-

Q1.3,5,9,17,?(SSC CGL 2015-Ist sitting)

a)42 b) 26c) 65 d) 33

Q2. 122438710? (SSC CGL 2015-IInd sitting)

a)11 b) 13 c) 9 d) 8

Q3. 12_41_34123__234(SSC CGL-2015 Ist Sitting)

a)3241b) 2134 c) 1432 d) 3212

Q4.Which of the following will come next in the following series?(Bank Of India-Banking Officer 2010)

9 1 9 8 2 9 8 7 3 9 8 7 6 4 9 8 7 6 5 5 9 8 7 6 5 4 6 9 8 7 6 5 4 ?

a)7b) 8 c) 3d) 2 e) 4

Q5.8_1 67__532_4(UBI PO-2010)

a)9,2,3,4 b) 2,9,4,3 c) 9,2,4,3 d) 3,9,2,4 e) 4,9,2,3

TYPE-2 Completion of Series with one missing term

Ex-5. APZBQYCRXDSW?

a)ETVb) DXVc) FWX d) EVX e)None

Ex-6. Z WV SRQ NMLK ?

a)HEFEDb) HGFED c) JKLMN d) GHLKJe) None

Ex-7. 10za 8yb6xc ? 2ve

a)3wdb) 5we c) 4dw d) 4wde) None

Ex-8. a*b ef* i*j *po ?

a)#vu b) u*vc) *kud) $vue) None

Q6. BMRG, DLTF, FKVE, HJXD, ?(SSC CGL Tier-I 2011)

a)JIZC b) JZIBc) GIFBd) MOLC

Q7. A, CD, GHI, ? , UVWXYZ(SSC CGL Tier-I 2014)

a)LMNPb) MNOLc) NOPLd) MNOP

Q8. FAK IEMLIO ? (SSC CGL Tier-I 2015)

a)OMQ b) OPQ c) MNOd) NOP

Q9. Y9B* W*D7 *U5F?(SBI Associate Bank PO 2002)

a)S3H*b) T#H*c) T*#Hd) S*H5e)SH*1

TYPE-3 Completion of Series with set of Letters

Ex-9. p _ q r r _ s _ _ s t _ t t _

a)qrssttb) qrssss c) qrsttt d) prsstte) None

Q10. a _ _ b a b b a _ a b b a _ b a (SSC CGL Tier-I 2013)

a)ababb) abba c) aabbd) aaab

Q11. m_o_omo_n_nono_ (UBI AAO 2012)

a)Nomonb) mnmonc) nnmmmd) monno

TYPE-4 Find out the wrong number in the sequence.

Q12. 102, 101, 98, 93, 86, 74, 66, 53(SSC CGL Tier-I 2013)

a)101b) 66 c) 74 d) 93

Q13.Find out the number that does not belong to the group for lack of common property.

169289361 442484 729 (SSC CGL Prelim exam 2002)

a)484b)442 c)361 d)289

TYPE-5 Find out the Term that is following the set of rules mentioned in given questions-

Q14. Number of letters skipped in between adjacent letters in the series increases by one. Which of the following series observes this rule ?(SSC CGL Tier-I 2013)

a)WBKQXYF b) WYBFKQX c) YBQQFHN d) WZCHJMQ

Q15. How many such pairs of letters are there in the word RECOVERED, which have as many letters between them in the word as in the English alphabet?(SSC CGL Tier-I 2014)

a)Threeb) Fourc) Sixd) Five

TYPE-6 Completion of Series with one,two or many missing terms.

Q16. Select from the alternatives an appropriate term that is identical to the term given in the question.(SSC CGL Tier-I 2015)